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| author | Craig Topper <craig.topper@intel.com> | 2018-03-24 07:48:54 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-03-24 07:48:54 +0000 |
| commit | 097b47a0fcc499ff735dc8a78273b8a226541c9f (patch) | |
| tree | 5a87bf8d4671598c7c62609faee2c3d5da936476 /llvm/utils/TableGen/X86DisassemblerTables.cpp | |
| parent | 86163630174961f1ab91c2a48a012b79fa7ce6ad (diff) | |
| download | llvm-097b47a0fcc499ff735dc8a78273b8a226541c9f.zip llvm-097b47a0fcc499ff735dc8a78273b8a226541c9f.tar.gz llvm-097b47a0fcc499ff735dc8a78273b8a226541c9f.tar.bz2 | |
[X86] Add a new disassembler opcode map for 3DNow. Stop treating 3DNow as an attribute.
This reduces the size of llvm-mc by at least 150k since we no longer have to multiply the attribute across 7 tables.
llvm-svn: 328416
Diffstat (limited to 'llvm/utils/TableGen/X86DisassemblerTables.cpp')
| -rw-r--r-- | llvm/utils/TableGen/X86DisassemblerTables.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/llvm/utils/TableGen/X86DisassemblerTables.cpp b/llvm/utils/TableGen/X86DisassemblerTables.cpp index 91f15e2..9e01eaa 100644 --- a/llvm/utils/TableGen/X86DisassemblerTables.cpp +++ b/llvm/utils/TableGen/X86DisassemblerTables.cpp @@ -546,8 +546,6 @@ static inline bool inheritsFrom(InstructionContext child, case IC_EVEX_L2_W_XD_KZ_B: case IC_EVEX_L2_W_OPSIZE_KZ_B: return false; - case IC_3DNOW: - return false; default: errs() << "Unknown instruction class: " << stringForContext((InstructionContext)parent) << "\n"; @@ -882,7 +880,7 @@ void DisassemblerTables::emitInstructionInfo(raw_ostream &o, } void DisassemblerTables::emitContextTable(raw_ostream &o, unsigned &i) const { - const unsigned int tableSize = 32768; + const unsigned int tableSize = 16384; o.indent(i * 2) << "static const uint8_t " CONTEXTS_STR "[" << tableSize << "] = {\n"; i++; @@ -890,9 +888,7 @@ void DisassemblerTables::emitContextTable(raw_ostream &o, unsigned &i) const { for (unsigned index = 0; index < tableSize; ++index) { o.indent(i * 2); - if (index & ATTR_3DNOW) - o << "IC_3DNOW"; - else if (index & ATTR_EVEX) { + if (index & ATTR_EVEX) { o << "IC_EVEX"; if (index & ATTR_EVEXL2) o << "_L2"; @@ -1015,6 +1011,7 @@ void DisassemblerTables::emitContextDecisions(raw_ostream &o1, raw_ostream &o2, emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[4], XOP8_MAP_STR); emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[5], XOP9_MAP_STR); emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[6], XOPA_MAP_STR); + emitContextDecision(o1, o2, i1, i2, ModRMTableNum, *Tables[7], THREEDNOW_MAP_STR); } void DisassemblerTables::emit(raw_ostream &o) const { |